Upgrade your 2023–2026 GM Colorado or GMC Canyon 2.7-liter turbo truck with the Flowmaster® American Thunder® Cat-Back Exhaust System—engineered to deliver stronger performance, deeper tone, and premium stainless-steel durability. Built from mandrel-bent 3.00-inch to dual 2.50-inch 16-gauge 409 stainless steel tubing, this system boosts exhaust flow for enhanced throttle response and added power.

A 50 Series Big Block performance muffler provides an aggressive to moderate exhaust tone while improving overall efficiency. Dyno testing reveals maximum gains of up to 13 horsepower and 15 lb-ft of torque at the wheels over the stock exhaust system.

This system gives you styling flexibility with dual 3.50-inch polished stainless steel tips and the choice of dual out rear or dual out same-side exit, adding a clean, custom appearance. Installation is simple thanks to the use of existing factory hanger locations and the inclusion of factory-style hangers, hardware, and instructions. Backed by Flowmaster’s Lifetime Limited Warranty.

Fitment 

Fits the following vehicles:
• 2023–2026 Chevrolet Colorado with 2.7L engine
• 2023–2026 GMC Canyon with 2.7L engine
• Fits trucks equipped with 2.7-liter turbo engine
• Fits models with factory hanger locations
• Fits all bed and cab configurations (when equipped with 2.7L engine)

Features

• 3.00-inch to dual 2.50-inch mandrel-bent 409 stainless steel tubing
• 50 Series Big Block muffler for aggressive to moderate performance tone
• Max dyno gains of 13 hp and 15 lb-ft at the wheels
• Dual 3.50-inch polished stainless steel tips
• Choose dual out rear or dual same-side exit
• Includes factory-style hangers and all installation hardware
• Uses factory hanger locations
• Easy at-home installation
• Lifetime Limited Warranty